[" 9.Which of the following compounds shall not "],[" produce propene by reaction with HBr followed "],[" by elimination or direct only elimination "],[" reaction? "],[[" 1) "H_(2)C-CH_(2)],[CH_(2)]]

Which of the following compounds shall not produce propene by reaction with HBr followed by elimination or direct only elimination reaction? (a) CH_3CH_2CH_2Br (b) CH_2=C=O (c) CH_3CH_2CH_2OH (d)None of these